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1.发明公开
公开(公告)号：EP3071833A1
公开(公告)日：2016-09-28
申请号：EP14798748.1
申请日：2014-11-05
申请人： Robert Bosch GmbH
发明人： FICARELLA, Giuseppe , MEDORO, Nello
CPC分类号： F02M37/18 , B01D35/005 , F02M37/0029 , F02M37/0052 , F02M37/0082 , F02M37/041 , F02M37/043 , F02M37/06 , F02M37/22 , F02M63/0001 , F04B23/10
摘要： A pumping unit has a fuel storage tank (2), a piston pump (6) for feeding the fuel to an internal combustion engine (3); a gear pump (7) for feeding the fuel from the storage tank (2) to the piston pump (6), and a hydraulic circuit (46) which connects together the storage tank (2) and the internal combustion engine (3), extends through a pump body (8) of the piston pump (6) so as to lubricate an actuating shaft (36) of the piston pump (6) and has a collection branch (55) for collecting the fuel leaks resulting from the lubrication of said actuating shaft (36); the collection branch (55) being connected to an intake (37a) of the gear pump (7) so as to lubricate an actuating shaft (42) of the gear pump (7) with the fuel from said collection branch (55).
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公开(公告)号：EP1982100A1
公开(公告)日：2008-10-22
申请号：EP07712046.7
申请日：2007-01-17
申请人： Robert Bosch GmbH
发明人： MARINO, Giuseppe , DE LUCA, Alessandro , CAROLI, Vittorio , CAVALLO, Angela , GUARINO, Rocco , LOIUDICE, Nicola , RONCONE, Massimiliano , FICARELLA, Giuseppe
CPC分类号： F04B1/0452 , F02M59/462 , F04B53/1002 , F16K15/044 , F16K17/0406 , Y10T137/7927
摘要： A high-pressure pump for feeding fuel to an internal combustion engine has a pump housing (2); a fuel delivery duct (3); and a check valve (4), which is arranged along the delivery duct (3), and comprises a seat (7); a shutter (13) mobile within the seat (7); and a biasing and guiding assembly (14), which has a fastening member (16) suitable for being fastened to the pump housing (2) and sealing the seat (7) in a fluid-tight manner; a helical spring (17) suitable for biasing the shutter (13); and a bushing (18) arranged about the helical spring (17) in order to prevent curving of the helical spring (17).
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3.发明授权PUMPING UNIT FOR FEEDING FUEL, PREFERABLY DIESEL FUEL, FROM A STORAGE TANK TO AN INTERNAL COMBUSTION ENGINE 有权用于将燃料，优选柴油燃料从储存罐输送到内燃机的泵送单元
公开(公告)号：EP3071833B1
公开(公告)日：2018-04-18
申请号：EP14798748.1
申请日：2014-11-05
申请人： Robert Bosch GmbH
发明人： FICARELLA, Giuseppe , MEDORO, Nello
CPC分类号： F02M37/18 , B01D35/005 , F02M37/0029 , F02M37/0052 , F02M37/0082 , F02M37/041 , F02M37/043 , F02M37/06 , F02M37/22 , F02M63/0001 , F04B23/10
摘要： A pumping unit has a fuel storage tank (2), a piston pump (6) for feeding the fuel to an internal combustion engine (3); a gear pump (7) for feeding the fuel from the storage tank (2) to the piston pump (6), and a hydraulic circuit (46) which connects together the storage tank (2) and the internal combustion engine (3), extends through a pump body (8) of the piston pump (6) so as to lubricate an actuating shaft (36) of the piston pump (6) and has a collection branch (55) for collecting the fuel leaks resulting from the lubrication of said actuating shaft (36); the collection branch (55) being connected to an intake (37a) of the gear pump (7) so as to lubricate an actuating shaft (42) of the gear pump (7) with the fuel from said collection branch (55).
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4.发明授权INTAKE VALVE FOR A HIGH-PRESSURE PUMP, IN PARTICULAR FOR INTERNAL COMBUSTION ENGINE FUEL 有权EINLASSVENTIL用于高压泵，尤其是用于燃料内燃机
公开(公告)号：EP1442213B1
公开(公告)日：2007-01-17
申请号：EP02790687.4
申请日：2002-10-30
申请人： ROBERT BOSCH GMBH
CPC分类号： F02M59/464 , F02M59/06 , F02M59/08 , F02M63/0225 , F04B1/0452 , F04B1/0465 , F04B53/102
摘要： The valve (9) has a valve body (36) having a seat (42) with whichcooperates a shutter (43) kept closed by a first spring (48) of substantially constant pressure, and by a second spring (49) varyuing in pressure during at least part of the stroke of the piston (7). The springs (48, 49) are helical compression types, and their pressures are summed on the shutter (43), which has a plate (44) and a stem (46). The first spring (48) is located between the valve body (36) and a flange (52) integral with a sleeve (53) which is fitted to the stem (46) in an adjustable position; and the second spring (49) is located between the plate (44) and the piston (7).
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